(1/4)^x²+3x-2 >_ (1/8)^2x+4

jawab

(¹/₄)ˣ^²⁺³ˣ⁻² ≥ (¹/₈)²ˣ⁺⁴

(2⁻²)ˣ^² ⁺³ˣ⁻² ≥ (2⁻³)²ˣ⁺⁴

-2(x²+ 3x - 2) ≥ -3(2x+4)
-2x² - 6x + 4 ≥ -6x - 12
-2x² - 6x + 6x ≥ -12 - 4
-2x² ≥ -16
x² ≤ 8
x≤ √8
x ≤ 2√2